Verb morphology in speakers with agrammatic aphasia

2017 ◽  
Vol 12 (3) ◽  
pp. 373-403 ◽  
Author(s):  
Tina Marusch ◽  
Lena Ann Jäger ◽  
Frank Burchert ◽  
Lyndsey Nickels

Abstract This paper reports an investigation of the production of verb morphology in English speakers with agrammatic aphasia. Our main goal was to test four accounts of the processing of (ir-)regularity by quantifying regularity using affix type and the presence or absence of stem changes. Production accuracy of regular, mixed and two types of irregular past participles (irregular 1, irregular 2) was tested in English using a sentence completion task with a group of five speakers with agrammatic aphasia. The results showed significant effects on production accuracy of whether the verb required a stem change and of time reference frame but no effect of affix type: past participles that required stem changes (mixed and irregular 2 past participles) were more difficult to produce than past participles that did not change their stem (regular and irregular 1 past participles). Moreover, the production of present continuous forms was more accurate compared to past participle forms. These results suggest that a categorical conception of regular versus irregular is over-simplified, as accuracy was best predicted by stem change rather than by regularity. This is a finding most consistent with the Stem-based Assembly model. The results of this study have implications for the design and selection of stimuli in future experiments: Experimental stimuli need to be controlled for stem changes and affix type rather than assuming that irregular verbs are homogeneous.

2012 ◽  
Vol 7 (3) ◽  
pp. 351-380 ◽  
Author(s):  
Tina Marusch ◽  
Titus von der Malsburg ◽  
Roelien Bastiaanse ◽  
Frank Burchert

This study investigates tense morphology in agrammatic aphasia and the predictions of two accounts on processing of regular and irregular verbs: the Dual Mechanism model, that is, for aphasic data, the Declarative/Procedural model, and the Single Mechanism approach. The production of regular, irregular and mixed verbs in the present, simple past and past participle (present perfect) was tested in German by means of a sentence completion task with a group of seven speakers with agrammatic aphasia. The results show a difference between regular verbs and irregular verbs. Mixed verbs were equally difficult as irregular verbs. A frequency effect was found for irregular verbs but not for regular and mixed verbs. A significant difference among the correctness scores for present tense and simple past forms was found. Simple past and past participle were significantly more difficult than present tense. Error types were characterized by pure infinitive responses and time reference errors. Neither of the above accounts is sufficient to explain these results. Correctness scores and error patterns for mixed verbs suggest that such minor lexical patterns can be useful in finding new evidence in the debate on morphological processing. The findings also highlight time reference as well as language specific characteristics need to be taken into consideration.


2016 ◽  
Vol 32 (2) ◽  
pp. 247-276 ◽  
Author(s):  
Ziyin Mai ◽  
Boping Yuan

This article reports an empirical study investigating L2 acquisition of the Mandarin Chinese shì … de cleft construction by adult English-speaking learners within the framework of the Feature Reassembly Hypothesis (Lardiere, 2009). A Sentence Completion task, an interpretation task, two Acceptability Judgement tasks, and a felicity ranking task were administered to learners with intermediate and advanced Chinese proficiency ( n = 76). The results reveal an initial mapping between the target Chinese structure and the English it-cleft construction. The relevant tense, telicity and discourse features are added in an uneven feature-by-feature manner in the subsequent feature reassembly. It is proposed that feature reassembly tasks involving cross-domain operations (e.g. from prosody to syntax) are more complicated and more difficult to accomplish than those taking place within the same linguistic domain.


2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Vahideh Rasekhi ◽  
Jesse Harris

Previous studies have shown that English speakers use a range of factors including locality, information structure, and semantic parallelism to interpret clausal ellipsis structures. Yet, the relative importance of each factor is currently underexplored. As cues to information structure and semantic parallelism are often implicit in English, we turned to Persian which marks information structure overtly via word order scrambling and uses the -rā morpheme to indicate definiteness/specificity on direct objects. To determine what strategies Persian speakers use to disambiguate clausal ellipsis, we conducted a naturalness rating study and sentence completion task on polarity stripping structures. Our results show that information structure and parallelism strongly influence correlate resolution in both tasks, but that a weaker preference for a local correlate emerges in scrambling in the sentence completion task. As these results diverge from those obtained in English studies, we speculate that the morphosyntactic properties of Persian constrain the strategies the processer uses in selecting a contrastive correlate and resolving ambiguity in stripping ellipsis.


1991 ◽  
Vol 22 (3) ◽  
pp. 115-122 ◽  
Author(s):  
Kenneth G. Shipley ◽  
Mary A. Maddox ◽  
Joyce E. Driver

In Brown’s (1973) classic studies of language development, he found that irregular past tense verbs developed rather early in the developmental sequence. Several other researchers have also noted this early development of irregular verb forms. However, other researchers and clinicians have suggested that irregular verbs continue developing much later into the school-age years. The purpose of this study was to gain a preliminary view of children’s development of 49 irregular verbs. One hundred and twenty children between 3:0 and 9:0 were examined as they responded to a picture of the target verb with a sentence-completion task. It was found that some irregular verbs (e.g., hit) were correctly produced by the three year olds, but other irregulars (e.g., bent) were still not mastered by age 9. A preliminary order of development of the irregular verbs and possible clinical implications are offered.


2020 ◽  
Author(s):  
Nikolas Pautz ◽  
Kevin Durrheim

Individual differences in repetition priming is an often-overlooked area of research. The importance of this neglect becomes evident when considering the criticisms that priming research has received in the last decade concerning reliability. The current researched aimed to investigate whether individual differences in working memory capacity and affective states have differential effects on lexical-semantic repetition priming outcomes based on whether participants were first or second English speakers. Using logistic mixed-effects models to account for subject variation, the current paper investigated a three-way interaction between working memory capacity, negative affect score, and language on repetition priming outcomes. The results indicate that a statistically significant three-way interaction exists. We present an argument which posits that an individual’s primary language and subsequent familiarity with the primed concepts, in conjunction with individual differences in working memory capacity and mood, plays an important role in determining the most effective strategy used to complete a word-stem completion task.


1988 ◽  
Vol 40 (2) ◽  
pp. 323-339 ◽  
Author(s):  
J. A. Groeger

The suggestion that semantic activation can occur without conscious identification of the priming stimulus is still controversial. Many studies supporting such a contention, especially those where primes were auditorially presented, suffer from methodological shortcomings, frequently with regard to threshold measurement. In the study reported here 24 subjects underwent a considerably more rigorous thresholding procedure than has been usual, prior to engaging in a forced-choice sentence completion task. The results show that semantic priming operates when subjects were unable to detect the presence of primes and that phonological (but not semantic) priming operates when the primes were invariably detected but never correctly identified. The relevance of these qualitatively different effects of primes, as a function of the level at which they are presented, in discussed in the light of recent accounts of unconscious processing.


Infotekmesin ◽  
2019 ◽  
Vol 9 (01) ◽  
pp. 14-23
Author(s):  
Dang Anom ◽  
Danuri Danuri ◽  
Jaroji Jaroji

Irregular is verbs on English do not add with ed or d but change agree with rule. To listen andcomprehend only memorize from verb base make past tense and past participle. Because this resultmany people so think difficult in learning English specially of irregular verbs. Aim of this research is to make application dictionary irregular verbs base android to make support in listen English specially irregular verbs. Scheme of system use Unified Modelling Language, java programming and sqlite database. This research produce a application dictionary irregular verbs to use device mobile base android


2018 ◽  
Vol 40 (4) ◽  
pp. 907-921 ◽  
Author(s):  
Carrie N. Jackson ◽  
Elizabeth Mormer ◽  
Laurel Brehm

AbstractThis study uses a sentence completion task with Swedish and Chinese L2 English speakers to investigate how L1 morphosyntax and L2 proficiency influence L2 English subject-verb agreement production. Chinese has limited nominal and verbal number morphology, while Swedish has robust noun phrase (NP) morphology but does not number-mark verbs. Results showed that like L1 English speakers, both L2 groups used grammatical and conceptual number to produce subject-verb agreement. However, only L1 Chinese speakers—and less-proficient speakers in both L2 groups—were similarly influenced by grammatical and conceptual number when producing the subject NP. These findings demonstrate how L2 proficiency, perhaps combined with cross-linguistic differences, influence L2 production and underscore that encoding of noun and verb number are not independent.


2010 ◽  
Author(s):  
A. K. Rose ◽  
M. Mason-Li ◽  
D. Nicholas ◽  
M. Hobbs

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